问题
选择题
—Can I help you?
—_____.[ ]
A. Thank you
B. Yes, please, I want a pen.
C. You're welcome.
D. I'm sorry.
答案
答案：B
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—Can I help you?
—_____.[ ]
A. Thank you
B. Yes, please, I want a pen.
C. You're welcome.
D. I'm sorry.
答案：B